/**
 * Created by PanJiaChen on 16/11/18.
 */

/**
 * @param {string} path
 * @returns {Boolean}
 */
export function isExternal(path) {
  return /^(https?:|mailto:|tel:)/.test(path)
}

/**
 * @param {string} str
 * @returns {Boolean}
 */
export function validUsername(str) {
  const valid_map = ['admin', 'editor']
  return valid_map.indexOf(str.trim()) >= 0
}

/**
 * @param {string} url
 * @returns {Boolean}
 */
export function validURL(url) {
  const reg = /^(https?|ftp):\/\/([a-zA-Z0-9.-]+(:[a-zA-Z0-9.&%$-]+)*@)*((25[0-5]|2[0-4][0-9]|1[0-9]{2}|[1-9][0-9]?)(\.(25[0-5]|2[0-4][0-9]|1[0-9]{2}|[1-9]?[0-9])){3}|([a-zA-Z0-9-]+\.)*[a-zA-Z0-9-]+\.(com|edu|gov|int|mil|net|org|biz|arpa|info|name|pro|aero|coop|museum|[a-zA-Z]{2}))(:[0-9]+)*(\/($|[a-zA-Z0-9.,?'\\+&%$#=~_-]+))*$/
  return reg.test(url)
}

/**
 * @param {string} str
 * @returns {Boolean}
 */
export function validLowerCase(str) {
  const reg = /^[a-z]+$/
  return reg.test(str)
}

/**
 * @param {string} str
 * @returns {Boolean}
 */
export function validUpperCase(str) {
  const reg = /^[A-Z]+$/
  return reg.test(str)
}

/**
 * @param {string} str
 * @returns {Boolean}
 */
export function validAlphabets(str) {
  const reg = /^[A-Za-z]+$/
  return reg.test(str)
}

/**
 * @param {string} email
 * @returns {Boolean}
 */
export function validEmail(email) {
  const reg = /^(([^<>()\[\]\\.,;:\s@"]+(\.[^<>()\[\]\\.,;:\s@"]+)*)|(".+"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$/
  return reg.test(email)
}

/**
 * @param {string} str
 * @returns {Boolean}
 */
export function isString(str) {
  if (typeof str === 'string' || str instanceof String) {
    return true
  }
  return false
}

/**
 * @param {Array} arg
 * @returns {Boolean}
 */
export function isArray(arg) {
  if (typeof Array.isArray === 'undefined') {
    return Object.prototype.toString.call(arg) === '[object Array]'
  }
  return Array.isArray(arg)
}

// export function isEmpty(val) {
//   return !!((val === '' || val === undefined || val == null))
// }

export function isNotEmpty(val) {
  return !((val === '' || val === undefined || val == null))
}

// 判断是不是数值
export function isNumber(value) {
  return !isNaN(parseFloat(value)) && isFinite(value);
}

// 判断是不是正整数
export function isInteger(val) { // 判断是不是正整数
  var r = /^\+?[1-9][0-9]*$/
  var flag = r.test(val)
  return flag
}

export function isPhone(val) {
  var reg = /^1[3456789]\d{9}$/

  return reg.test(val)
}

/// 判断对象是否为空 {}
export function isEmptyObj(obj) {
	return isEmpty(obj) || Object.keys(obj).length == 0
}



/**
 * 去除对象中所有符合条件的对象
 * @param {Object} obj 来源对象
 * @param {Function} fn 函数验证每个字段
 */
function compactObj (obj, fn) {
  for (var i in obj) {
    if (typeof obj[i] === 'object') {
      compactObj(obj[i], fn)
    }
    if (fn(obj[i])) {
      delete obj[i]
    }
  }
}

// 删除空对象 删除'', null, undefined
export function isEmpty (foo) {
    if (typeof foo === 'object') {
      for (var i in foo) {
        return false
      }
      return true
    } else {
      return foo === '' || foo === null || foo === undefined
    }
}

/**
 * 深度移除对象中的空字段
 */
export function filterNull(params) {
	return compactObj(params, isEmpty)
}
